CN116713517A - Processing method of long truss thin plate array groove - Google Patents
Processing method of long truss thin plate array groove Download PDFInfo
- Publication number
- CN116713517A CN116713517A CN202310973808.7A CN202310973808A CN116713517A CN 116713517 A CN116713517 A CN 116713517A CN 202310973808 A CN202310973808 A CN 202310973808A CN 116713517 A CN116713517 A CN 116713517A
- Authority
- CN
- China
- Prior art keywords
- milling
- cutting depth
- cutting
- feeding
- depth value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000003801 milling Methods 0.000 claims abstract description 136
- 238000005452 bending Methods 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000003754 machining Methods 0.000 claims description 27
- 230000000052 comparative effect Effects 0.000 description 43
- 230000035882 stress Effects 0.000 description 18
- 238000005299 abrasion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The application relates to a processing method of a stringer sheet array groove, which comprises the following steps: step one: milling four sides of the part to a preset depth so as to deform the part in advance, and reducing the influence of subsequent processing on the bending degree of two long sides of the part; step two: milling the upper and lower surfaces of the part to a preset depth to reduce the bending degree of the upper and lower surfaces of the part; step three: milling the two long sides of the part to a preset depth to reduce the bending degree of the two long sides of the part; step four: milling a groove on the upper surface of the part; step five: milling the four sides of the part by a preset depth to reduce the bending degree of the four sides of the part. The whole part processed and molded by the application is arc-shaped, so that the distortion deformation, bending deformation, deformation caused by cutting force and cutting heat and deformation caused by clamping generated by the part in the processing process can be reduced, the influence of the part deformation on the groove precision is reduced to the greatest extent, the precision of the processed groove is ensured to meet the requirements, the consistency of the tooth groove precision is ensured, and the processing yield of the thin plate groove array stringer part is improved.
Description
Technical Field
The application relates to the field of machining, in particular to a method for machining a stringer thin plate array groove.
Background
The stringer sheet is a long part having a length of more than 2500mm, a width of about 80mm, and a thickness of 4.6mm or less, and the array grooves are a plurality of (typically 20 or more) grooves arranged side by side. At present, array grooves are required to be machined on the stringer sheet according to machining requirements, and the machining requirements are high, namely the straightness of the long side of the part is required to be smaller than 0.05, the parallelism is required to be smaller than 0.05, the surface flatness (tooth top flatness) of the part is required to be smaller than 0.1, and the tolerance of the tooth groove size (width and depth) is +/-0.015 mm.
The existing processing process is as follows: 1. rough milling the upper and lower surfaces of the part; 2. roughly milling four sides of the part; 3. and milling grooves on the surface of the part. Because residual stress exists in the blanking and processing processes, the long side of the part after milling groove forming is in wavy bending by adopting the processing method, and the processing requirements, in particular the requirements of straightness of the long side of the part, tooth top flatness and tooth slot dimensional tolerance, cannot be met.
Disclosure of Invention
The application aims to solve the technical problem of low machining precision of a stringer thin plate array groove, and particularly provides a stringer thin plate array groove machining method.
Aspects and advantages of the application will be set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the application.
In one embodiment of the application, a stringer sheet array groove processing method is provided comprising the steps of:
step one: milling four sides of the part to a preset depth to deform the part;
step two: milling the upper and lower surfaces of the part to a preset depth to reduce the bending degree of the upper and lower surfaces of the part;
step three: milling the two long sides of the part to a preset depth to reduce the bending degree of the two long sides of the part;
step four: milling a groove on the upper surface of the part;
step five: milling the four sides of the part by a preset depth to reduce the bending degree of the four sides of the part.
In some embodiments, the first step specifically includes:
the milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth is 0.4-0.6mm.
In some embodiments, the second step specifically includes:
alternately rough milling the upper surface and the lower surface of the part for a plurality of times to mill off black skin on the surface of the part and remove the thickness allowance;
vibrating the part by using a vibration exciter to release residual stress generated by processing in the part;
semi-finish milling the upper and lower surfaces of the part to reduce the bending of the part;
and (3) finely milling the upper surface of the part to enable the thickness of the part to reach the preset requirement.
In some embodiments, the steps of alternately rough milling the upper and lower surfaces of the part a plurality of times to mill off the black skin on the surface of the part and remove the thickness allowance comprise:
the first rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the first rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the second rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the second rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the third step of rough milling the upper surface of the part, wherein the cutting depth of the milling cutter is a second cutting depth value;
the second cut depth value is greater than the first cut depth value.
In some embodiments, the steps of alternately rough milling the upper and lower surfaces of the part a plurality of times to mill off the black skin on the surface of the part and remove the thickness allowance, a milling cutter with a diameter of 32mm is used, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, the first cutting depth value is 0.04-0.06mm, and the second cutting depth value is 0.08-0.12mm.
In some embodiments, the step of semi-finish milling the upper and lower surfaces of the part to reduce bending of the part specifically includes:
firstly, adopting a milling cutter with the diameter of 32mm to semi-finish mill the lower surface of a part, wherein the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm;
and then the milling cutter with the diameter of 32mm is adopted to semi-finish mill the upper surface of the part, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm.
In some embodiments, in the step of finish milling the upper surface of the part to achieve the preset thickness requirement, a milling cutter with a diameter of 32mm is used, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm.
In some embodiments, in the third step, a milling cutter with a diameter of 8mm is used, and cutting parameters are as follows: the rotating speed is 1300-1700r/min, the feeding is 240-360mm/min, and the cutting depth value is 3.8-4.2mm.
In some embodiments, the step four specifically includes:
firstly, a double-layer saw blade milling cutter with the diameter of 59 multiplied by 1.9mm is adopted for rough machining, and the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 256-384mm/min, and the cutting depth value is 0.16-0.24mm;
and then adopting a three-edge milling cutter with the diameter of 60 multiplied by 1.95mm for finish machining, wherein the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 176-264mm/min, and the cutting depth value is 1.4-2.1mm.
In some embodiments, the fifth step specifically includes:
firstly, a milling cutter with the diameter of 8mm is adopted for rough machining, and cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth value is 0.16-0.24mm;
and then adopting a milling cutter with the diameter of 8mm for finish machining, wherein the cutting parameters are as follows: the rotating speed is 1300-1700r/min, the feeding is 240-360mm/min, and the cutting depth value is 3.2-4.8mm.
By adopting the technical scheme, the application has the following beneficial effects:
the processing method provided by the application adopts the processing steps of milling four sides (deforming the part in advance so as to reduce the deformation of the part caused by subsequent processing) and milling the long sides again, milling four sides again after processing the array groove, and repeatedly reducing the bending degree of the part caused by processing. Because the curvature can not be completely removed, the whole part formed by processing is arc-shaped (the shape of the shoulder pole after being bent), compared with the part formed by processing in the prior art, the processing method has the advantages that the distortion, bending deformation, deformation caused by cutting force and cutting heat and deformation caused by clamping of the part in the processing process can be reduced, the influence of the part deformation on the groove precision is reduced to the greatest extent, the groove precision is improved, the precision of the processed groove meets the requirements, the consistency of the tooth groove precision is ensured, and the processing yield of the thin plate groove array stringer part is improved.
These and other features, aspects, and advantages of the present application will become better understood with reference to the following description. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Drawings
A full and enabling disclosure of the present application, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures, in which:
FIG. 1 is a flow chart of a method for processing a stringer sheet array groove in accordance with an embodiment of the present application.
Description of the embodiments
Reference now will be made in detail to embodiments of the application, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation, not limitation, of the application. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the scope or spirit of the application. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Accordingly, it is intended that the present application cover such modifications and variations as come within the scope of the appended claims and their equivalents. As used in this specification, the terms "first," "second," and the like are used interchangeably to distinguish one component from another and are not intended to represent the location or importance of the respective components. As used in this specification, the terms "a," "an," "the," and "said" are intended to mean that there are one or more elements unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.
Referring now to the drawings, in which like numerals represent like elements throughout, the present application is further explained below in connection with specific embodiments.
As shown in fig. 1, an embodiment of the present application provides a method for processing a stringer sheet array groove, which includes the following steps:
step one: milling four sides of the part to a preset depth to deform the part, so as to reduce the influence of subsequent processing on the bending degree of two long sides of the part, and further reduce the influence of the bending degree of two long sides of the part on the width and depth precision of the groove;
step two: milling the upper and lower surfaces of the part to a preset depth to reduce the bending degree of the upper and lower surfaces of the part, thereby reducing the influence of the bending of the upper and lower surfaces on the precision of the tooth top flatness of the groove;
step three: milling the two long sides of the part to a preset depth to reduce the bending degree of the two long sides of the part; when the upper surface and the lower surface of the part are milled, the two long sides of the part are slightly bent again due to factors such as the temperature rise of the part, the processing stress and the like, so that the two long sides of the part are required to be milled again (the long sides have great influence on the groove precision, and the short sides do not need to be milled again at the moment because the short sides are milled in the step one), the straightness of the long sides is further ensured, namely, the side bending of the part after the processing deformation of the working procedure before the correction is used as a precision processing alignment reference;
step four: milling grooves on the upper surface of the part, wherein the step is to process an array groove on the upper surface of the part which is processed in advance;
step five: the four sides of the part are milled to a preset depth to reduce the bending degree of the four sides of the part, and the four sides of the part are slightly bent again due to the factors such as the temperature rise of the part and the processing stress generated during the groove processing in the step four, so that the four sides are required to be milled again after the array groove is processed, and the straightness of the four sides is ensured.
The application defines one surface of the processed array groove as the upper surface of the part, and the other surface as the lower surface.
The application adopts the processing steps of milling four sides and surfaces firstly, milling long sides again, then milling four sides after processing the array grooves, and repeatedly reducing the bending degree of the part caused by processing. Because the curvature can not be completely removed, the whole part formed by processing is arc-shaped (the shape of the shoulder pole after being bent), compared with the part formed by processing in the prior art, the processing method has the advantages that the distortion, bending deformation, deformation caused by cutting force and cutting heat and deformation caused by clamping of the part in the processing process can be reduced, the influence of the part deformation on the groove precision is reduced to the greatest extent, the groove precision is improved, the precision of the processed groove meets the requirements, the consistency of the tooth groove precision is ensured, and the processing yield of the thin plate groove array stringer part is improved.
The first step specifically comprises: the milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth is 0.4-0.6mm. Preferably, a milling cutter with a diameter of 8mm is used, and the cutting parameters are: the rotation speed is 2000r/min, the feeding is 800mm/min, and the cutting depth is 0.5mm.
The higher the rotation speed of the milling cutter, the faster the feeding, the more abrasion of the cutter is increased, the faster and higher the temperature of the part is increased, and the deformation of the part is large. The greater the cutting depth, the greater the machining resistance, the faster and higher the part temperature rise, and the speed is affected. Thus, differences in milling cutter rotational speed, feed and cutting depth parameters affect the bending of the part (bending of the two long sides is also called side bending). The inventor proves through trial and error that the milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and when the cutting depth is 0.4-0.6mm, the lateral bending is smaller, particularly, a milling cutter with the diameter of 8mm is adopted, and the setting parameters are as follows: the rotating speed is 2000r/min, the feeding is 800mm/min, and the lateral bending of four sides of the part is minimum when the cutting depth is 0.5mm. Specific comparative examples are the following:
comparative example 1: the rotating speed is 2500r/min, the feeding speed is 1000mm/min, the cutting depth is 1.5mm, and the lateral bending is 0.60mm;
comparative example 2: the rotating speed is 2200r/min, the feeding speed is 1000mm/min, the cutting depth is 1.0mm, and the lateral bending is 0.30mm;
comparative example 3: the rotating speed is 2000r/min, the feeding is 1000mm/min, the cutting depth is 0.80mm, and the lateral bending is 0.20mm;
this embodiment: the rotating speed is 2000r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the lateral bending is 0.10mm;
in the embodiment, the shape of the cutter with smaller diameter is roughly milled, and the machining mode of small cutting and quick feeding is adopted, so that the lateral bending of the part can be reduced to the greatest extent.
The second step specifically comprises:
the upper surface and the lower surface of the part are alternately and roughly milled for a plurality of times to mill off black skin on the surface of the part and remove thickness allowance, wherein the thickness allowance is that the thickness of the part is larger at the moment, and the part is required to be removed to reduce the thickness so as to meet the processing requirement. Alternately milling the upper surface and the lower surface means milling the first surface, milling the second surface, washing the first surface, and sequentially circulating; the upper surface and the lower surface can be alternately milled to offset the internal machining stress of the part, namely, when a first surface is milled, the internal machining stress of the part can be caused, when a second surface is milled, the machining stress generated by the part when the second surface is milled can be offset with the machining stress generated by the part when the first surface is milled, namely, a symmetrical milling mode is adopted, the stress deformation offset principle is utilized, the machining stress existing in the part can be reduced, and the bending deformation of the part caused by the machining stress is reduced. The internal processing stress can be offset repeatedly by alternately rough milling the upper surface and the lower surface for many times, so that the internal processing stress is reduced to the greatest extent.
The vibration exciter is adopted to vibrate the part so as to release residual stress generated by processing in the part, the vibration part can further release stress generated during part milling, and internal stress of the part is reduced again; preferably, setting exciting force of the vibration exciter to 8%, and setting acceleration G (G is more than or equal to 3m/s2 and less than or equal to 10m/s 2) for 45min; the method adopts a vibration aging mode to release residual stress generated by processing in advance, so that deformation caused by cutting force and cutting heat in the processing process is reduced;
semi-finish milling the upper and lower surfaces of the part to reduce the bending of the part, wherein semi-finish milling means that the part still does not reach the preset thickness after cutting. The upper surface and the lower surface of the part are scratched or damaged by the vibration part, so that the bending degree of the upper surface and the lower surface of the part is further reduced by semi-finish milling, and the upper surface and the lower surface are semi-finish milled in the step, and the internal stress of the part is counteracted by adopting a symmetrical cutting mode again;
and then finish milling the upper surface of the part to enable the thickness of the part to reach the preset requirement, namely the application realizes the cutting of the upper surface of the part through two steps of semi-finish milling and finish milling.
The method comprises the following steps of alternately rough milling the upper surface and the lower surface of the part for a plurality of times to mill off black skin and thickness allowance on the surface of the part, and specifically comprises the following steps:
the first rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the first rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the second rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the second rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the third step of rough milling the upper surface of the part, wherein the cutting depth of the milling cutter is a second cutting depth value;
the second cut depth value is greater than the first cut depth value.
In the embodiment, the upper surface and the lower surface are cut in a small amount in the first pass, the upper surface and the lower surface are cut in the second pass, and the upper surface is cut in the third pass.
The upper surface and the lower surface of the part are alternately and roughly milled for a plurality of times to mill off the black skin and the thickness allowance of the surface of the part, a milling cutter with the diameter of 32mm is adopted, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, the first cutting depth value is 0.04-0.06mm, and the second cutting depth value is 0.08-0.12mm. Preferably, the cutting parameters are: the rotation speed is 800r/min, the feeding is 400mm/min, the first cutting depth value is 0.05mm, and the second cutting depth value is 0.1mm.
In consideration of the fact that the difference of the rotation speed, the feeding and the cutting depth parameters of the milling cutter can influence the bending degree of the part, the inventor proves that the milling cutter with the diameter of 32mm is adopted by the repeated test, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, the first cutting depth value is 0.04-0.06mm, and the second cutting depth value is 0.08-0.12mm, and the curvature is smaller. In particular, the cutting parameters are: the rotation speed is 800r/min, the feeding is 400mm/min, the first cutting depth value is 0.05mm, the second cutting depth value is 0.1mm, the curvature is minimum,
that is, preferably, the present embodiment specifically includes:
1. the milling cutter with the diameter of 32mm is adopted for rough milling the upper surface of the part for the first time, and the cutting parameters are as follows: the rotation speed is 800r/min, the feeding is 400mm/min, and the depth value is 0.05mm. Comparative examples (comparative examples were made by the inventors using different cutting parameters and the degree of curvature after the processing was examined, as compared with the degree of curvature of the present example) were as follows:
comparative example 1: the rotating speed is 1500r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the bending is 2.0mm;
comparative example 2: the rotating speed is 1200r/min, the feeding is 800mm/min, the cutting depth is 0.30mm, and the bending is 1.2mm;
comparative example 3: the rotating speed is 1000r/min, the feeding is 600mm/min, the cutting depth is 0.20mm, and the bending is 0.50mm;
this embodiment: the rotating speed is 800r/min, the feeding speed is 400mm/min, the cutting depth is 0.05mm, and the bending is 0.20mm.
2. The milling cutter with the diameter of 32mm is adopted for rough milling the lower surface of the part for the first time, and the cutting parameters are as follows: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.05mm. The comparative examples are as follows:
comparative example 1: the rotating speed is 1500r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the bending is 1.20mm;
comparative example 2: the rotating speed is 1200r/min, the feeding is 800mm/min, the cutting depth is 0.30mm, and the bending is 0.60mm;
comparative example 3: the rotating speed is 1000r/min, the feeding is 600mm/min, the cutting depth is 0.20mm, and the bending is 0.30mm;
this embodiment: the rotating speed is 800r/min, the feeding speed is 400mm/min, the cutting depth is 0.05mm, and the bending is 0.10mm.
3. The milling cutter with the diameter of 32mm is adopted for carrying out the second rough milling on the upper surface of the part, and the cutting parameters are as follows: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.1mm. The comparative examples are as follows:
comparative example 1: the rotating speed is 1500r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the bending is 1.20mm;
comparative example 2: the rotating speed is 1200r/min, the feeding is 800mm/min, the cutting depth is 0.30mm, and the bending is 0.60mm;
comparative example 3: the rotating speed is 1000r/min, the feeding is 600mm/min, the cutting depth is 0.20mm, and the bending is 0.30mm;
this embodiment: the rotating speed is 800r/min, the feeding speed is 400mm/min, the cutting depth is 0.10mm, and the bending is 0.10mm.
4. The milling cutter with the diameter of 32mm is adopted for the second rough milling of the lower surface of the part, and the cutting parameters are as follows: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.1mm. Comparative example was the same as 3 above.
5. The milling cutter with the diameter of 32mm is adopted for the third rough milling of the upper surface of the part, and the cutting parameters are as follows: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.1mm. Comparative example was the same as 3 above.
The method comprises the following steps of semi-finish milling the upper surface and the lower surface of a part, and specifically comprises the following steps:
firstly, adopting a milling cutter with the diameter of 32mm to semi-finish mill the lower surface of the part so as to reduce the bending degree of the part, wherein the cutting parameters are as follows: the rotation speed is 600-1000r/min, the feeding is 320-480mm/min, the cutting depth value is 0.04-0.06mm, and the cutting parameters are preferably as follows: the rotating speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.05mm; the parameters are chosen taking into account also that differences in the rotation speed, feed and depth of cut parameters of the milling cutter affect the curvature of the part, as compared for example to the following:
comparative example 1: the rotating speed is 1500r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the bending is 1.20mm;
comparative example 2: the rotating speed is 1200r/min, the feeding is 800mm/min, the cutting depth is 0.30mm, and the bending is 0.60mm;
comparative example 3: the rotating speed is 1000r/min, the feeding is 600mm/min, the cutting depth is 0.20mm, and the bending is 0.30mm;
this embodiment: the rotating speed is 800r/min, the feeding speed is 400mm/min, the cutting depth is 0.05mm, and the bending is 0.10mm.
And then the milling cutter with the diameter of 32mm is adopted to semi-finish mill the upper surface of the part, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm. Preferably, the cutting parameters are: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.05mm. The comparative examples are as above.
In the step of finish milling the upper surface of the part to enable the thickness of the part to reach the preset requirement, a milling cutter with the diameter of 32mm is adopted, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm. Preferably, the cutting parameters are: the rotation speed is 800r/min, the feeding is 400mm/min, and the cutting depth value is 0.05mm. The comparative examples are as above.
In the third step, a milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1300-1700r/min, the feeding is 240-360mm/min, and the cutting depth value is 3.8-4.2mm. Preferably, the cutting parameters are: the rotation speed is 1500r/min, the feeding is 300mm/min, and the cutting depth value is 4mm. The comparative examples are as follows:
comparative example 1: the rotating speed is 2500r/min, the feeding speed is 1000mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.30mm;
comparative example 2: the rotating speed is 2000r/min, the feeding is 1000mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.25mm;
comparative example 3: the rotating speed is 1500r/min, the feeding is 600mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.15mm;
this embodiment: the rotating speed is 1500r/min, the feeding speed is 300mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.05mm.
The fourth step specifically comprises the following steps:
firstly, a double-layer saw blade milling cutter with the diameter of 59 multiplied by 1.9mm is adopted for rough machining, and the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 256-384mm/min, and the cutting depth value is 0.16-0.24mm; preferably, the cutting parameters are: the rotating speed is 650r/min, the feeding is 320mm/min, and the cutting depth value is 0.2mm; the double-layer sharp multi-tooth cutter is adopted for layering processing, so that the efficiency can be improved, and the distortion of parts can be reduced; the parameters are also chosen taking into account the above causes of deformation, the comparison being for example:
comparative example 1: the rotating speed is 1000r/min, the feeding speed is 800mm/min, the cutting depth is 0.50mm, and the twisting speed is 1.0mm;
comparative example 2: the rotating speed is 800r/min, the feeding speed is 600mm/min, the cutting depth is 0.50mm, and the twisting is 0.80mm;
comparative example 3: the rotating speed is 800r/min, the feeding is 400mm/min, the cutting depth is 0.30mm, and the twisting is 0.30mm;
this embodiment: the rotating speed is 650r/min, the feeding is 320mm/min, the cutting depth is 0.20mm, and the twisting is 0.10mm.
And then adopting a three-edge milling cutter with the diameter of 60 multiplied by 1.95mm for finish machining, wherein the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 176-264mm/min, and the cutting depth value is 1.4-2.1mm. Preferably, the cutting parameters are: the rotating speed is 650r/min, the feeding is 220mm/min, the cutting depth value is 1.75mm, and the three-edge cutter is adopted for processing, so that the abrasion of the cutter can be reduced, and the consistency of the tooth slot precision can be improved. The comparative examples are as follows:
comparative example 1: the rotating speed is 1000r/min, the feeding speed is 800mm/min, the cutting depth is 1.75mm, and the size error of tooth grooves is 0.15mm;
comparative example 2: the rotating speed is 800r/min, the feeding speed is 600mm/min, the cutting depth is 1.75mm, and the size error of tooth grooves is 0.10mm;
comparative example 3: the rotating speed is 800r/min, the feeding speed is 400mm/min, the cutting depth is 1.75mm, and the size error of tooth grooves is 0.06mm;
this embodiment: the rotating speed is 650r/min, the feeding speed is 220mm/min, the cutting depth is 1.75mm, and the size error of tooth grooves is 0.03mm.
The fifth step specifically comprises the following steps:
firstly, a milling cutter with the diameter of 8mm is adopted for rough machining, and cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth value is 0.16-0.24mm; preferably, the cutting parameters are: the rotating speed is 2000r/min, the feeding is 800mm/min, and the cutting depth value is 0.2mm; the comparative examples are as follows:
comparative example 1: the rotating speed is 2500r/min, the feeding speed is 1000mm/min, the cutting depth is 1.0mm, and the lateral bending is 0.50mm;
comparative example 2: the rotating speed is 2200r/min, the feeding speed is 1000mm/min, the cutting depth is 0.8mm, and the lateral bending is 0.30mm;
comparative example 3: the rotating speed is 2000r/min, the feeding is 1000mm/min, the cutting depth is 0.5mm, and the lateral bending is 0.20mm;
this embodiment: the rotating speed is 2000r/min, the feeding speed is 800mm/min, the cutting depth is 0.20mm, and the lateral bending is 0.10mm.
And then adopting a milling cutter with the diameter of 8mm for finish machining, wherein the cutting parameters are as follows: the rotation speed is 1300-1700r/min, the feeding is 240-360mm/min, the cutting depth value is 3.2-4.8mm, and the cutting parameters are preferably as follows: the rotation speed is 1500r/min, the feeding is 300mm/min, and the cutting depth value is 4mm. The 4mm cutting depth can be cut in place at one time, so that the cutting marks are reduced. The comparative examples are as follows:
comparative example 1: the rotating speed is 2500r/min, the feeding speed is 1000mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.30mm;
comparative example 2: the rotating speed is 2000r/min, the feeding is 1000mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.25mm;
comparative example 3: the rotating speed is 1500r/min, the feeding is 600mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.15mm;
this embodiment: the rotating speed is 1500r/min, the feeding speed is 300mm/min, the cutting depth is 4.0mm, and the lateral bending is 0.05mm.
This written description uses examples to disclose the application, including the best mode, and also to enable any person skilled in the art to practice the application, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the application is defined by the claims, and may include other embodiments that occur to those skilled in the art. Such other embodiments are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
Claims (10)
1. The processing method of the stringer sheet array groove is characterized by comprising the following steps of:
step one: milling four sides of the part to a preset depth to deform the part;
step two: milling the upper and lower surfaces of the part to a preset depth to reduce the bending degree of the upper and lower surfaces of the part;
step three: milling the two long sides of the part to a preset depth to reduce the bending degree of the two long sides of the part;
step four: milling a groove on the upper surface of the part;
step five: milling the four sides of the part by a preset depth to reduce the bending degree of the four sides of the part.
2. The method of claim 1, wherein step one specifically comprises:
the milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth is 0.4-0.6mm.
3. The method of claim 1, wherein the second step comprises:
alternately rough milling the upper surface and the lower surface of the part for a plurality of times to mill off black skin on the surface of the part and remove the thickness allowance;
vibrating the part by using a vibration exciter to release residual stress generated by processing in the part;
semi-finish milling the upper and lower surfaces of the part to reduce the bending of the part;
and (3) finely milling the upper surface of the part to enable the thickness of the part to reach the preset requirement.
4. A method of forming an array of stringer sheets according to claim 3 wherein the steps of alternately rough milling the upper and lower surfaces of the part a plurality of times to mill off the black skin on the surface of the part and remove the remainder, comprise:
the first rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the first rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a first cutting depth value;
the second rough milling of the upper surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the second rough milling of the lower surface of the part is performed, and the cutting depth of the milling cutter is a second cutting depth value;
the third step of rough milling the upper surface of the part, wherein the cutting depth of the milling cutter is a second cutting depth value;
the second cut depth value is greater than the first cut depth value.
5. The method of claim 4, wherein the steps of alternately rough milling the upper and lower surfaces of the part to mill off the black skin on the surface of the part and remove the remaining part are performed a plurality of times by using a milling cutter having a diameter of 32mm, and the cutting parameters are: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, the first cutting depth value is 0.04-0.06mm, and the second cutting depth value is 0.08-0.12mm.
6. A method of forming an array of stringer sheets according to claim 3 wherein the step of semi-finish milling the upper and lower surfaces of the part to reduce the curvature of the part comprises:
firstly, adopting a milling cutter with the diameter of 32mm to semi-finish mill the lower surface of a part, wherein the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm;
and then the milling cutter with the diameter of 32mm is adopted to semi-finish mill the upper surface of the part, and the cutting parameters are as follows: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm.
7. A method of machining an array of stringer sheets according to claim 3, wherein the step of finish milling the upper surface of the part to a predetermined thickness employs a milling cutter having a diameter of 32mm, the cutting parameters being: the rotating speed is 600-1000r/min, the feeding is 320-480mm/min, and the cutting depth value is 0.04-0.06mm.
8. The method for processing the array grooves of the stringer sheet of claim 1, wherein in the third step, a milling cutter with the diameter of 8mm is adopted, and the cutting parameters are as follows: the rotating speed is 1300-1700r/min, the feeding is 240-360mm/min, and the cutting depth value is 3.8-4.2mm.
9. The method of claim 1, wherein the fourth step comprises:
firstly, a double-layer saw blade milling cutter with the diameter of 59 multiplied by 1.9mm is adopted for rough machining, and the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 256-384mm/min, and the cutting depth value is 0.16-0.24mm;
and then adopting a three-edge milling cutter with the diameter of 60 multiplied by 1.95mm for finish machining, wherein the cutting parameters are as follows: the rotating speed is 450-850r/min, the feeding is 176-264mm/min, and the cutting depth value is 1.4-2.1mm.
10. The method of claim 1, wherein the fifth step comprises:
firstly, a milling cutter with the diameter of 8mm is adopted for rough machining, and cutting parameters are as follows: the rotating speed is 1800-2200r/min, the feeding is 640-960mm/min, and the cutting depth value is 0.16-0.24mm;
and then adopting a milling cutter with the diameter of 8mm for finish machining, wherein the cutting parameters are as follows: the rotating speed is 1300-1700r/min, the feeding is 240-360mm/min, and the cutting depth value is 3.2-4.8mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310378569.0A CN116330017A (en) | 2023-04-11 | 2023-04-11 | Anti-deformation processing method for long tooth-shaped sheet part |
| CN2023103785690 | 2023-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116713517A true CN116713517A (en) | 2023-09-08 |
| CN116713517B CN116713517B (en) | 2024-01-05 |
Family
ID=86884077
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310378569.0A Pending CN116330017A (en) | 2023-04-11 | 2023-04-11 | Anti-deformation processing method for long tooth-shaped sheet part |
| CN202310973808.7A Active CN116713517B (en) | 2023-04-11 | 2023-08-04 | Processing method of long truss thin plate array groove |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310378569.0A Pending CN116330017A (en) | 2023-04-11 | 2023-04-11 | Anti-deformation processing method for long tooth-shaped sheet part |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN116330017A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765230A (en) * | 1970-04-04 | 1973-10-16 | Kraftwerk Union Ag | Method of measuring intrinsic stresses in structural components of machines and apparatus and devices for performing such method |
| CN104439452A (en) * | 2014-11-24 | 2015-03-25 | 湖北三江航天红阳机电有限公司 | Efficient grid milling method for inner curved surface of tapered revolving body |
| CN107717030A (en) * | 2017-11-24 | 2018-02-23 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of the long boss of Titanium alloy TA15 thin-walled |
| CN113976963A (en) * | 2021-11-22 | 2022-01-28 | 中国航发贵州黎阳航空动力有限公司 | Method for processing semi-closed multi-curved-surface inner cavity |
| CN114042973A (en) * | 2021-11-23 | 2022-02-15 | 贵州航天电子科技有限公司 | Machining method for sheet boss part |
-
2023
- 2023-04-11 CN CN202310378569.0A patent/CN116330017A/en active Pending
- 2023-08-04 CN CN202310973808.7A patent/CN116713517B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765230A (en) * | 1970-04-04 | 1973-10-16 | Kraftwerk Union Ag | Method of measuring intrinsic stresses in structural components of machines and apparatus and devices for performing such method |
| CN104439452A (en) * | 2014-11-24 | 2015-03-25 | 湖北三江航天红阳机电有限公司 | Efficient grid milling method for inner curved surface of tapered revolving body |
| CN107717030A (en) * | 2017-11-24 | 2018-02-23 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of the long boss of Titanium alloy TA15 thin-walled |
| CN113976963A (en) * | 2021-11-22 | 2022-01-28 | 中国航发贵州黎阳航空动力有限公司 | Method for processing semi-closed multi-curved-surface inner cavity |
| CN114042973A (en) * | 2021-11-23 | 2022-02-15 | 贵州航天电子科技有限公司 | Machining method for sheet boss part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116330017A (en) | 2023-06-27 |
| CN116713517B (en) | 2024-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108746782B (en) | Milling method of high-precision suspended web | |
| CN101109415B (en) | Two-in-one method for processing narrow series thin-wall bearing ferrule | |
| CN112139761B (en) | Numerical control machining method for controlling machining deformation of large aluminum alloy wall plate part | |
| CN116713517B (en) | Processing method of long truss thin plate array groove | |
| CN111069858B (en) | Method for processing flexible stress isolation thin ring for precision optical machine system | |
| CN111730114A (en) | Milling method for aluminum alloy thin-wall web structural member | |
| CN105414899B (en) | A kind of unilateral section is parabolical annular thin wall structural member processing method | |
| JP3291172B2 (en) | Manufacturing method of metal mirror | |
| CN105312645B (en) | The processing method of thin web plate titanium alloy edge strip | |
| CN107931631B (en) | The processing method on spout set installation side | |
| CN111496485A (en) | Machining deformation control process for 4J32 material thin-wall ring part | |
| CN115351305B (en) | Numerical control machining method for thin-wall part air film groove | |
| CN110480284B (en) | Processing method of web plate notch structure | |
| JP2006326749A (en) | Broach for processing internal gear of minimum module | |
| CN201128094Y (en) | Dry method edge grinding machine for pottery brick | |
| CN102407430A (en) | V-shaped cylinder cover blank and combustion chamber processing method for V-shaped cylinder cover | |
| CN117483851B (en) | Machining feed method for annular thin-wall part | |
| CN109434134B (en) | Fork slot leans on turning processing method after gear sleeve of automobile synchronizer heat treatment | |
| CN110253236A (en) | A kind of processing method of film disk-like accessory | |
| CN115156847B (en) | Processing method of thin-wall ring parts | |
| CN115351306B (en) | Design method of cutter front cutter surface chip rolling groove for machining air film groove and cutter | |
| CN109500544B (en) | Thin and thick interval laminated manufacturing method of microstructure mold | |
| CN216990886U (en) | Sheet metal die cavity processing frock | |
| RU2370354C1 (en) | Method to eliminate incurving of ring-type part faces by grinding | |
| CN107309440A (en) | A kind of thin-wall bearing ferrule lathe in machining method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |